Skip to content

Study of Efficacy and Safety of Twice Daily Oral Iptacopan (LNP023) in Adult PNH Patients Who Are Naive to Complement Inhibitor Therapy

A Multicenter, Single-arm, Open-label Trial to Evaluate Efficacy and Safety of Oral, Twice Daily Iptacopan in Adult PNH Patients Who Are Naive to Complement Inhibitor Therapy

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04820530
Acronym
APPOINT-PNH
Enrollment
40
Registered
2021-03-29
Start date
2021-07-19
Completion date
2023-04-18
Last updated
2024-10-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Paroxysmal Nocturnal Hemoglobinuria (PNH)

Keywords

Paroxysmal nocturnal hemoglobinuria, Hemoglobin, Anemia, LNP023, Iptacopan

Brief summary

The purpose of this Phase 3 study was to determine whether iptacopan is efficacious and safe for the treatment of Paroxysmal nocturnal hemoglobinuria (PNH) patients who were naïve to complement inhibitor therapy.

Detailed description

This study was a multicenter, single-arm, open-label trial which was comprised of 8 weeks screening period, 24-week core treatment period and 24-week extension treatment period. Eligible PNH patients with hemolysis (LDH \> 1.5 ULN) and anemia (hemoglobin \<10 g/dL), who were naive to complement inhibitor therapy, including anti-C5 antibody treatment, received iptacopan monotherapy at a dose 200 mg orally b.i.d.

Interventions

Taken orally b.i.d. Dosage supplied: 200mg Dosage form: Hard gelatin capsule Route of Administration: oral

Sponsors

Novartis Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Male and female participants ≥ 18 years of age with a diagnosis of PNH confirmed by high-sensitivity flow cytometry with RBCs and WBCs clone size ≥ 10% * Mean hemoglobin level \<10 g/dL * LDH \> 1.5 x Upper Limit of Normal (ULN) * Vaccination against Neisseria meningitidis infection is required prior to the start of study treatment * If not received previously, vaccination against Streptococcus pneumoniae and Haemophilus influenzae infections should be given

Exclusion criteria

* Prior treatment with a complement inhibitor, including anti-C5 antibody * Known or suspected hereditary complement deficiency * History of hematopoietic stem cell transplantation * Patients with laboratory evidence of bone marrow failure (reticulocytes \<100x109/L; platelets \<30x109/L; neutrophils \<0.5x109/L). * Active systemic bacterial, viral (incl. COVID-19)or fungal infection within 14 days prior to study drug administration. * History of recurrent invasive infections caused by encapsulated organisms, e.g. meningococcus or pneumococcus. * Major concurrent comorbidities including but not limited to severe kidney disease (e.g., dialysis), advanced cardiac disease (e.g., NYHA class IV heart failure), severe pulmonary disease (e.g., severe pulmonary hypertension (WHO class IV)), or hepatic disease (e.g., active hepatitis) that in the opinion of the investigator precludes participant's participation in the study.

Design outcomes

Primary

MeasureTime frameDescription
Marginal Proportion (Expressed as Percentage) of Participants With Sustained Increase in Hemoglobin Levels From Baseline of ≥ 2 g/dL in the Absence of Red Blood Cell TransfusionsBaseline, hemoglobin between Day 126 and Day 168 and absence of transfusions between Day 14 and Day 168Sustained increase in hemoglobin levels (responder) is defined as an increase from baseline in hemoglobin levels of ≥ 2 g/dL on three out of four measurements between Day 126 and 168 of the core treatment period, without requiring red blood cell (RBC) transfusions between Day 14 and Day 168. Requiring RBC transfusions refers to any patient receiving transfusions or meeting protocol defined criteria (Hemoglobin level of ≤9 g/dL (≤8 g/dL for Chinese population) with signs and or symptoms of sufficient severity to warrant a transfusion or Hemoglobin of ≤7 g/dL (≤6 g/dL for Chinese population), regardless of presence of clinical signs and/or symptoms). The term 'marginal proportion' can be interpreted as the population average probability of being a responder. Results incorporated a method to handle missing data using multiple imputation. Hence, all 40 patients enrolled contributed to the primary analysis.

Secondary

MeasureTime frameDescription
Adjusted Annualized Major Adverse Vascular Events Rate in the Core Treatment PeriodBetween Day 1 and Day 168Adjusted annual rate is carried out using the Wilson method. A MAVE is defined as: acute peripheral vascular occlusion, amputation (non-traumatic; nondiabetic), cerebral arterial occlusion/cerebrovascular accident, cerebral venous occlusion, dermal thrombosis, gangrene (non-traumatic; nondiabetic), hepatic/portal vein thrombosis (Budd-Chiari syndrome), mesenteric/visceral arterial, thrombosis or infarction, mesenteric/visceral vein thrombosis or infarction, myocardial infarction, pulmonary embolus, renal arterial thrombosis, renal vein thrombosis, thrombophlebitis / deep vein thrombosis, transient ischemic attack, unstable angina or other.
Change From Baseline in FACIT-Fatigue ScoreBaseline and mean of visits between Day 126 and Day 168Change from baseline in FACIT-Fatigue scores as mean of visits between Day 126 and Day 168. The FACIT-Fatigue is a 13-item questionnaire with support for its validity and reliability in PNH that assesses patient self-reported fatigue and its impact on daily activities and function. All FACIT scales are scored so that a high score is better. As each of the 13 items of the FACIT-F Scale ranges from 0-4, the range of possible scores is 0-52, with 0 being the worst possible score and 52 the best. Change from baseline was analyzed using a Mixed Model of Repeated Measures (MMRM) which includes age (indicator variable of age ≥ 45 years), sex, history of transfusion (yes/no) prior to study treatment, visit, baseline FACIT-Fatigue score as fixed effects and visit\*baseline FACIT-Fatigue score as interaction.
Marginal Proportion (Expressed as Percentage) With Sustained Hemoglobin Levels of ≥ 12 g/dL in the Absence of Red Blood Cell TransfusionsHemoglobin between Day 126 and Day 168 and absence of transfusions between Day 14 and Day 168Sustained hemoglobin levels (responder) is defined as hemoglobin levels ≥ 12 g/dL on three out of four measurements between Day 126 and 168 of the core treatment period, without requiring red blood cell (RBC) transfusions between Day 14 and Day 168. Requiring RBC transfusions refers to any patient receiving transfusions or meeting protocol defined criteria (Hemoglobin level of ≤9 g/dL (≤8 g/dL for Chinese population) with signs and or symptoms of sufficient severity to warrant a transfusion or Hemoglobin of ≤7 g/dL (≤6 g/dL for Chinese population), regardless of presence of clinical signs and/or symptoms). The term 'marginal proportion' can be interpreted as the population average probability of being a responder. Results incorporated a method to handle missing data using multiple imputation. Hence, all 40 patients enrolled contributed to the analysis.
Marginal Proportion (Expressed as Percentage) of Participants Who Remain Free From TransfusionsBetween Day 14 and Day 168Marginal proportion (expressed as percentage) of participants who did not require transfusions between Day 14 and Day 168. Requiring RBC transfusions refers to any patient receiving transfusions or meeting protocol defined criteria (Hemoglobin level of ≤9 g/dL (≤8 g/dL for Chinese population) with signs and or symptoms of sufficient severity to warrant a transfusion or Hemoglobin of ≤7 g/dL (≤6 g/dL for Chinese population), regardless of presence of clinical signs and/or symptoms). The term 'marginal proportion' can be interpreted as the population average probability of being a responder. The 95% CI was obtained using the bootstrap method
Change From Baseline in Hemoglobin Levels in the Core Treatment PeriodBaseline, Day 126 to 168Change from baseline in hemoglobin levels as mean of visits between Day 126 and Day 168. In order to factor out the effect of transfusions in this analysis, if a patient had a transfusion during the core treatment period, the hemoglobin (Hb) values during 30 days following the transfusion were excluded and Hb data were imputed. Change from baseline was analyzed using a mixed model of repeated measures which included age (indicator variable of age ≥ 45 years), sex, history of transfusion (yes/no) prior to study treatment, visit, and baseline hemoglobin as fixed effects and the interaction between visit and baseline hemoglobin levels.
Percent Change From Baseline in LDHBaseline, Day 126 to 168Percent change from baseline in lactate dehydrogenase (LDH) levels as mean of visits between Day 126 and Day 168. Percentage change from baseline was analyzed using a mixed model for repeated measures (MMRM) which includes age (indicator variable of age ≥ 45 years), sex, history of transfusion (yes/no) prior to study treatment, visit, baseline LDH as fixed effects and visit\*baseline LDH as interaction. Results incorporated a method to handle missing data using multiple imputation. Hence, all 40 patients enrolled contributed to the analysis.
Adjusted Annualized Clinical BTH Rate in the Core Treatment PeriodBetween Day 1 and Day 168Adjusted annualized rate of clinical breakthrough hemolysis (BTH) events is carried out using the Wilson method. The breakthrough is defined clinical if either there is a decrease in hemoglobin levels equal to or more than 2 g/dL (compared to the latest assessment, or within 15 days) or if patients present signs or symptoms of gross hemoglobinuria, painful crisis, dysphagia or any other significant clinical PNH-related signs & symptoms, in presence of laboratory evidence of intravascular hemolysis.
Change From Baseline in Absolute Reticulocyte CountBaseline and mean of visits between Day 126 and 168Change from baseline in absolute reticulocyte counts as mean of visits between Day 126 and Day 168. Change from baseline was analyzed using a MMRM which includes age (indicator variable of age ≥ 45 years), sex, history of transfusion (yes/no) prior to study treatment, visit, baseline reticulocyte counts as fixed effects and visit\*baseline reticulocyte counts as interaction.

Other

MeasureTime frameDescription
Change From Baseline in LDH at Visit Day 336Baseline, Day 336Change from baseline in Lactate dehydrogenase (LDH) at Visit Day 336
Percentage of Patients Meeting Hematological Response Criteria Irrespective of RBC TransfusionsBaseline, Day 336Patients with hematological response are those with an increase in Hb from baseline ≥ 2g/dL irrespective of red blood cell (RBC) transfusions and patients achieving Hb ≥ 12g/dL irrespective of RBC transfusions.
Marginal Proportion (Expressed as Percentage) of Patients Not Receiving and Not Requiring RBC TransfusionsBetween Day 14 and Day 336Requiring Red Blood Cells (RBC) transfusions refers to any patient receiving transfusions or meeting protocol defined criteria (Hemoglobin level of ≤9 g/dL (≤8 g/dL for Chinese population) with signs and or symptoms of sufficient severity to warrant a transfusion or Hemoglobin of ≤7 g/dL (≤6 g/dL for Chinese population), regardless of presence of clinical signs and/or symptoms).
Adjusted Annualized Clinical BTH Rate After the Start of LNP023 TreatmentBetween Day 1 and Day 336Adjusted annualized rate of clinical breakthrough hemolysis (BTH) events is carried out using the Wilson method. The breakthrough is defined clinical if either there is a decrease in hemoglobin levels equal to or more than 2 g/dL (compared to the latest assessment, or within 15 days) or if patients present signs or symptoms of gross hemoglobinuria, painful crisis, dysphagia or any other significant clinical PNH-related signs & symptoms, in presence of laboratory evidence of intravascular hemolysis.
Change From Baseline in Absolute Reticulocyte Count at Day 336Baseline, Day 336Change from baseline in absolute reticulocyte count at visit Day 336.
Change From Baseline in FACIT-Fatigue ScoreBaseline, Day 336The FACIT-Fatigue is a 13-item questionnaire with support for its validity and reliability in PNH that assesses patient self-reported fatigue and its impact on daily activities and function. All FACIT scales are scored so that a high score is better. As each of the 13 items of the FACIT-F Scale ranges from 0-4, the range of possible scores is 0-52, with 0 being the worst possible score and 52 the best.
Adjusted Annualized Major Adverse Vascular Events Rate After the Start of LNP023 TreatmentBetween Day 1 and Day 336Adjusted annual rate is carried out using the Wilson method. A Major Adverse Vascular Events (MAVE) is defined as: acute peripheral vascular occlusion, amputation (non-traumatic; nondiabetic), cerebral arterial occlusion/cerebrovascular accident, cerebral venous occlusion, dermal thrombosis, gangrene (non-traumatic; nondiabetic), hepatic/portal vein thrombosis (Budd-Chiari syndrome), mesenteric/visceral arterial, thrombosis or infarction, mesenteric/visceral vein thrombosis or infarction, myocardial infarction, pulmonary embolus, renal arterial thrombosis, renal vein thrombosis, thrombophlebitis / deep vein thrombosis, transient ischemic attack, unstable angina or other
Change From Baseline in Hemoglobin LevelsBaseline, Day 336Change from baseline in Hemoglobin at Visit Day 336

Countries

China, France, Germany, Italy, Malaysia, Singapore, South Korea, United Kingdom

Participant flow

Recruitment details

Participants took part in 12 investigative sites in 8 countries: France(1), United Kingdom(1), Italy(1), Korea, Republic of(1), Singapore(1), China(3), Malaysia(2), Germany(2)

Pre-assignment details

All patients provided written informed consent prior to the start of any study-related activities. Vaccination against Neisseria meningitidis, Streptococcus pneumoniae and Haemophilus influenzae infections was required prior to the start of treatment.

Participants by arm

ArmCount
LNP023
Participants receive LNP023 at a dose of 200 mg b.i.d. orally
40
Total40

Baseline characteristics

CharacteristicLNP023
Age, Continuous42.1 years
STANDARD_DEVIATION 15.85
Race/Ethnicity, Customized
Asian
27 Participants
Race/Ethnicity, Customized
Black or African American
1 Participants
Race/Ethnicity, Customized
White
12 Participants
Sex: Female, Male
Female
17 Participants
Sex: Female, Male
Male
23 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 40
other
Total, other adverse events
24 / 40
serious
Total, serious adverse events
8 / 40

Outcome results

Primary

Marginal Proportion (Expressed as Percentage) of Participants With Sustained Increase in Hemoglobin Levels From Baseline of ≥ 2 g/dL in the Absence of Red Blood Cell Transfusions

Sustained increase in hemoglobin levels (responder) is defined as an increase from baseline in hemoglobin levels of ≥ 2 g/dL on three out of four measurements between Day 126 and 168 of the core treatment period, without requiring red blood cell (RBC) transfusions between Day 14 and Day 168. Requiring RBC transfusions refers to any patient receiving transfusions or meeting protocol defined criteria (Hemoglobin level of ≤9 g/dL (≤8 g/dL for Chinese population) with signs and or symptoms of sufficient severity to warrant a transfusion or Hemoglobin of ≤7 g/dL (≤6 g/dL for Chinese population), regardless of presence of clinical signs and/or symptoms). The term 'marginal proportion' can be interpreted as the population average probability of being a responder. Results incorporated a method to handle missing data using multiple imputation. Hence, all 40 patients enrolled contributed to the primary analysis.

Time frame: Baseline, hemoglobin between Day 126 and Day 168 and absence of transfusions between Day 14 and Day 168

Population: Full Analysis Set (FAS): All patients with confirmed eligibility to whom study treatment was assigned.

ArmMeasureValue (NUMBER)
LNP023Marginal Proportion (Expressed as Percentage) of Participants With Sustained Increase in Hemoglobin Levels From Baseline of ≥ 2 g/dL in the Absence of Red Blood Cell Transfusions92.2 Percentage of responders
Secondary

Adjusted Annualized Clinical BTH Rate in the Core Treatment Period

Adjusted annualized rate of clinical breakthrough hemolysis (BTH) events is carried out using the Wilson method. The breakthrough is defined clinical if either there is a decrease in hemoglobin levels equal to or more than 2 g/dL (compared to the latest assessment, or within 15 days) or if patients present signs or symptoms of gross hemoglobinuria, painful crisis, dysphagia or any other significant clinical PNH-related signs & symptoms, in presence of laboratory evidence of intravascular hemolysis.

Time frame: Between Day 1 and Day 168

Population: Full Analysis Set (FAS): All patients with confirmed eligibility to whom study treatment was assigned.

ArmMeasureValue (NUMBER)
LNP023Adjusted Annualized Clinical BTH Rate in the Core Treatment Period0.00 BTH events/year
Secondary

Adjusted Annualized Major Adverse Vascular Events Rate in the Core Treatment Period

Adjusted annual rate is carried out using the Wilson method. A MAVE is defined as: acute peripheral vascular occlusion, amputation (non-traumatic; nondiabetic), cerebral arterial occlusion/cerebrovascular accident, cerebral venous occlusion, dermal thrombosis, gangrene (non-traumatic; nondiabetic), hepatic/portal vein thrombosis (Budd-Chiari syndrome), mesenteric/visceral arterial, thrombosis or infarction, mesenteric/visceral vein thrombosis or infarction, myocardial infarction, pulmonary embolus, renal arterial thrombosis, renal vein thrombosis, thrombophlebitis / deep vein thrombosis, transient ischemic attack, unstable angina or other.

Time frame: Between Day 1 and Day 168

Population: Full Analysis Set (FAS): All patients with confirmed eligibility to whom study treatment was assigned.

ArmMeasureValue (NUMBER)
LNP023Adjusted Annualized Major Adverse Vascular Events Rate in the Core Treatment Period0.00 MAVE events/year
Secondary

Change From Baseline in Absolute Reticulocyte Count

Change from baseline in absolute reticulocyte counts as mean of visits between Day 126 and Day 168. Change from baseline was analyzed using a MMRM which includes age (indicator variable of age ≥ 45 years), sex, history of transfusion (yes/no) prior to study treatment, visit, baseline reticulocyte counts as fixed effects and visit\*baseline reticulocyte counts as interaction.

Time frame: Baseline and mean of visits between Day 126 and 168

Population: Full Analysis Set (FAS): All patients with confirmed eligibility to whom study treatment was assigned.

ArmMeasureValue (MEAN)
LNP023Change From Baseline in Absolute Reticulocyte Count-82.48 x10^9 cells/L
Secondary

Change From Baseline in FACIT-Fatigue Score

Change from baseline in FACIT-Fatigue scores as mean of visits between Day 126 and Day 168. The FACIT-Fatigue is a 13-item questionnaire with support for its validity and reliability in PNH that assesses patient self-reported fatigue and its impact on daily activities and function. All FACIT scales are scored so that a high score is better. As each of the 13 items of the FACIT-F Scale ranges from 0-4, the range of possible scores is 0-52, with 0 being the worst possible score and 52 the best. Change from baseline was analyzed using a Mixed Model of Repeated Measures (MMRM) which includes age (indicator variable of age ≥ 45 years), sex, history of transfusion (yes/no) prior to study treatment, visit, baseline FACIT-Fatigue score as fixed effects and visit\*baseline FACIT-Fatigue score as interaction.

Time frame: Baseline and mean of visits between Day 126 and Day 168

Population: Full Analysis Set (FAS): All patients with confirmed eligibility to whom study treatment was assigned.

ArmMeasureValue (MEAN)
LNP023Change From Baseline in FACIT-Fatigue Score10.75 score on a scale
Secondary

Change From Baseline in Hemoglobin Levels in the Core Treatment Period

Change from baseline in hemoglobin levels as mean of visits between Day 126 and Day 168. In order to factor out the effect of transfusions in this analysis, if a patient had a transfusion during the core treatment period, the hemoglobin (Hb) values during 30 days following the transfusion were excluded and Hb data were imputed. Change from baseline was analyzed using a mixed model of repeated measures which included age (indicator variable of age ≥ 45 years), sex, history of transfusion (yes/no) prior to study treatment, visit, and baseline hemoglobin as fixed effects and the interaction between visit and baseline hemoglobin levels.

Time frame: Baseline, Day 126 to 168

Population: Full Analysis Set (FAS): All patients with confirmed eligibility to whom study treatment was assigned.

ArmMeasureValue (MEAN)
LNP023Change From Baseline in Hemoglobin Levels in the Core Treatment Period4.28 g/dL
Secondary

Marginal Proportion (Expressed as Percentage) of Participants Who Remain Free From Transfusions

Marginal proportion (expressed as percentage) of participants who did not require transfusions between Day 14 and Day 168. Requiring RBC transfusions refers to any patient receiving transfusions or meeting protocol defined criteria (Hemoglobin level of ≤9 g/dL (≤8 g/dL for Chinese population) with signs and or symptoms of sufficient severity to warrant a transfusion or Hemoglobin of ≤7 g/dL (≤6 g/dL for Chinese population), regardless of presence of clinical signs and/or symptoms). The term 'marginal proportion' can be interpreted as the population average probability of being a responder. The 95% CI was obtained using the bootstrap method

Time frame: Between Day 14 and Day 168

Population: Full Analysis Set (FAS): All patients with confirmed eligibility to whom study treatment was assigned.

ArmMeasureValue (NUMBER)
LNP023Marginal Proportion (Expressed as Percentage) of Participants Who Remain Free From Transfusions97.6 Percentage of participants
Secondary

Marginal Proportion (Expressed as Percentage) With Sustained Hemoglobin Levels of ≥ 12 g/dL in the Absence of Red Blood Cell Transfusions

Sustained hemoglobin levels (responder) is defined as hemoglobin levels ≥ 12 g/dL on three out of four measurements between Day 126 and 168 of the core treatment period, without requiring red blood cell (RBC) transfusions between Day 14 and Day 168. Requiring RBC transfusions refers to any patient receiving transfusions or meeting protocol defined criteria (Hemoglobin level of ≤9 g/dL (≤8 g/dL for Chinese population) with signs and or symptoms of sufficient severity to warrant a transfusion or Hemoglobin of ≤7 g/dL (≤6 g/dL for Chinese population), regardless of presence of clinical signs and/or symptoms). The term 'marginal proportion' can be interpreted as the population average probability of being a responder. Results incorporated a method to handle missing data using multiple imputation. Hence, all 40 patients enrolled contributed to the analysis.

Time frame: Hemoglobin between Day 126 and Day 168 and absence of transfusions between Day 14 and Day 168

Population: Full Analysis Set (FAS): All patients with confirmed eligibility to whom study treatment was assigned.

ArmMeasureValue (NUMBER)
LNP023Marginal Proportion (Expressed as Percentage) With Sustained Hemoglobin Levels of ≥ 12 g/dL in the Absence of Red Blood Cell Transfusions62.8 Percentage of responders
Secondary

Percent Change From Baseline in LDH

Percent change from baseline in lactate dehydrogenase (LDH) levels as mean of visits between Day 126 and Day 168. Percentage change from baseline was analyzed using a mixed model for repeated measures (MMRM) which includes age (indicator variable of age ≥ 45 years), sex, history of transfusion (yes/no) prior to study treatment, visit, baseline LDH as fixed effects and visit\*baseline LDH as interaction. Results incorporated a method to handle missing data using multiple imputation. Hence, all 40 patients enrolled contributed to the analysis.

Time frame: Baseline, Day 126 to 168

Population: Full Analysis Set (FAS): All patients with confirmed eligibility to whom study treatment was assigned.

ArmMeasureValue (MEAN)
LNP023Percent Change From Baseline in LDH-83.55 Percent change from baseline in LDH
Other Pre-specified

Adjusted Annualized Clinical BTH Rate After the Start of LNP023 Treatment

Adjusted annualized rate of clinical breakthrough hemolysis (BTH) events is carried out using the Wilson method. The breakthrough is defined clinical if either there is a decrease in hemoglobin levels equal to or more than 2 g/dL (compared to the latest assessment, or within 15 days) or if patients present signs or symptoms of gross hemoglobinuria, painful crisis, dysphagia or any other significant clinical PNH-related signs & symptoms, in presence of laboratory evidence of intravascular hemolysis.

Time frame: Between Day 1 and Day 336

Population: Full Analysis Set (FAS): All patients with confirmed eligibility to whom study treatment was assigned.

ArmMeasureValue (NUMBER)
LNP023Adjusted Annualized Clinical BTH Rate After the Start of LNP023 Treatment0.05 BTH events/year
Other Pre-specified

Adjusted Annualized Major Adverse Vascular Events Rate After the Start of LNP023 Treatment

Adjusted annual rate is carried out using the Wilson method. A Major Adverse Vascular Events (MAVE) is defined as: acute peripheral vascular occlusion, amputation (non-traumatic; nondiabetic), cerebral arterial occlusion/cerebrovascular accident, cerebral venous occlusion, dermal thrombosis, gangrene (non-traumatic; nondiabetic), hepatic/portal vein thrombosis (Budd-Chiari syndrome), mesenteric/visceral arterial, thrombosis or infarction, mesenteric/visceral vein thrombosis or infarction, myocardial infarction, pulmonary embolus, renal arterial thrombosis, renal vein thrombosis, thrombophlebitis / deep vein thrombosis, transient ischemic attack, unstable angina or other

Time frame: Between Day 1 and Day 336

Population: Full Analysis Set (FAS): All patients with confirmed eligibility to whom study treatment was assigned.

ArmMeasureValue (NUMBER)
LNP023Adjusted Annualized Major Adverse Vascular Events Rate After the Start of LNP023 Treatment0.00 MAVE events/year
Other Pre-specified

Change From Baseline in Absolute Reticulocyte Count at Day 336

Change from baseline in absolute reticulocyte count at visit Day 336.

Time frame: Baseline, Day 336

Population: Full Analysis Set (FAS): All patients with confirmed eligibility to whom study treatment was assigned. Only participants with valid absolute reticulocyte count measurements at baseline and Day 336 were analyzed.

ArmMeasureValue (MEAN)Dispersion
LNP023Change From Baseline in Absolute Reticulocyte Count at Day 336-76.55 x10^9 cells/LStandard Deviation 50.149
Other Pre-specified

Change From Baseline in FACIT-Fatigue Score

The FACIT-Fatigue is a 13-item questionnaire with support for its validity and reliability in PNH that assesses patient self-reported fatigue and its impact on daily activities and function. All FACIT scales are scored so that a high score is better. As each of the 13 items of the FACIT-F Scale ranges from 0-4, the range of possible scores is 0-52, with 0 being the worst possible score and 52 the best.

Time frame: Baseline, Day 336

Population: Full Analysis Set (FAS): All patients with confirmed eligibility to whom study treatment was assigned. Only participants with valid FACIT-Fatigue scores at baseline and Day 336 were analyzed.

ArmMeasureValue (MEAN)Dispersion
LNP023Change From Baseline in FACIT-Fatigue Score10.4 score on a scaleStandard Deviation 10.14
Other Pre-specified

Change From Baseline in Hemoglobin Levels

Change from baseline in Hemoglobin at Visit Day 336

Time frame: Baseline, Day 336

Population: Full analysis set: All patients with confirmed eligibility to whom study treatment was assigned. Only participants with valid Hb measurements at Day 336 were analyzed.

ArmMeasureValue (MEAN)Dispersion
LNP023Change From Baseline in Hemoglobin Levels5.09 g/dLStandard Deviation 2.01
Other Pre-specified

Change From Baseline in LDH at Visit Day 336

Change from baseline in Lactate dehydrogenase (LDH) at Visit Day 336

Time frame: Baseline, Day 336

Population: Full Analysis Set (FAS): All patients with confirmed eligibility to whom study treatment was assigned.

ArmMeasureValue (MEAN)Dispersion
LNP023Change From Baseline in LDH at Visit Day 336-1393.3 U/LStandard Deviation 652.15
Other Pre-specified

Marginal Proportion (Expressed as Percentage) of Patients Not Receiving and Not Requiring RBC Transfusions

Requiring Red Blood Cells (RBC) transfusions refers to any patient receiving transfusions or meeting protocol defined criteria (Hemoglobin level of ≤9 g/dL (≤8 g/dL for Chinese population) with signs and or symptoms of sufficient severity to warrant a transfusion or Hemoglobin of ≤7 g/dL (≤6 g/dL for Chinese population), regardless of presence of clinical signs and/or symptoms).

Time frame: Between Day 14 and Day 336

Population: Full analysis set: All patients with confirmed eligibility to whom study treatment was assigned.

ArmMeasureValue (NUMBER)
LNP023Marginal Proportion (Expressed as Percentage) of Patients Not Receiving and Not Requiring RBC Transfusions97.5 Percentage of participants
Other Pre-specified

Percentage of Patients Meeting Hematological Response Criteria Irrespective of RBC Transfusions

Patients with hematological response are those with an increase in Hb from baseline ≥ 2g/dL irrespective of red blood cell (RBC) transfusions and patients achieving Hb ≥ 12g/dL irrespective of RBC transfusions.

Time frame: Baseline, Day 336

Population: Full analysis set: All patients with confirmed eligibility to whom study treatment was assigned. Only participants with valid Hb measurements at Day 336 were analyzed.

ArmMeasureGroupValue (NUMBER)
LNP023Percentage of Patients Meeting Hematological Response Criteria Irrespective of RBC Transfusions≥2 g/dL increase in Hb from baseline irrespective of RBC transfusions97.4 Percentage of participants
LNP023Percentage of Patients Meeting Hematological Response Criteria Irrespective of RBC TransfusionsHb ≥ 12g/dL irrespective of transfusions79.5 Percentage of participants

Source: ClinicalTrials.gov · Data processed: Feb 14, 2026